1results about How to "Increase wind capacity" patented technology

The utility model relates to wind driven generator technical field discloses a wind driven generator, its characterized in that, including fan main shaft, first blade layer, first blade layer includes a plurality of first blade, first blade is along the circumferential interval distribution of fan main shaft, second blade layer, second blade layer includes a plurality of second blade, second blade is along the circumferential interval distribution of fan main shaft, and second blade layer is set in the circumferential of fan main shaft relative to first blade layer staggered angle, the wind driven generator provided by the utility model, through setting first blade layer and second blade layer, and second blade layer is in the circumferential of fan main shaft relative to first blade layer staggered angle, can reduce the wind catching empty window period of fan rotation, improve the utilization of effective wind sweeping area, strengthen the overall wind catching capacity, simultaneously, the difference of angle of attack change that two layers of blades experience in the rotation process, can alleviate dynamic stall phenomenon, help to promote the wind energy conversion efficiency.